package com.example.onlinemonitoring.Util;

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;
@Component
@WebFilter(urlPatterns = "/*",filterName = "channelFilter")
public class CorsFilter implements Filter {

    final static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CorsFilter.class);

    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With, userId, token, x-requested-with, XMLHttpRequest, Accept");
        chain.doFilter(req, res);
    }
    public void init(FilterConfig filterConfig) {
    }
    public void destroy() {}
}